| 激光冲击处理对X70管线钢焊接接头力学性能的影响 |
| |
| 引用本文： | 孔德军,周朝政,胡爱萍.激光冲击处理对X70管线钢焊接接头力学性能的影响[J].吉林大学学报(工学版),2011,41(5):1507-1512. |
| |
| 作者姓名： | 孔德军 周朝政 胡爱萍 |
| |
| 作者单位： | 常州大学机械工程学院,江苏常州,213016 |
| |
| 基金项目： | 江苏省自然科学基金项目(BK2009104) |
| |
| 摘 要： | 利用激光冲击波对X70管线钢焊接接头进行了表面强化处理,分析了激光冲击强化处理后焊接接头组织结构,用显微硬度计测试了焊接接头显微硬度,通过X射线应力仪测定了残余应力沿焊接接头表面的分布规律,并对管线钢焊接接头激光冲击强化的微观机理进行了分析。结果表明:激光冲击波可以在焊接接头表面形成塑性变形层,显微硬度明显提高;材料组织均匀性得到了明显改善;消除了焊接接头表面残余拉应力,形成了残余压应力场。
|
| 关 键 词： | 激光冲击处理 X70管线钢 焊接接头 显微硬度 残余应力 |
Effect of laser shock on the mechanical properties of weld joint of X70 steel pipeline |
| |
| KONG De-jun,ZHOU Chao-zheng,HU Ai-ping.Effect of laser shock on the mechanical properties of weld joint of X70 steel pipeline[J].Journal of Jilin University:Eng and Technol Ed,2011,41(5):1507-1512. |
| |
| Authors: | KONG De-jun ZHOU Chao-zheng HU Ai-ping |
| |
| Affiliation: | KONG De-jun,ZHOU Chao-zheng,HU Ai-ping(School of Mechanical Engineering,Changzhou University,Changzhou 213016,China) |
| |
| Abstract: | The surface of weld joint of X70 steel pipeline was processed with Laser Shock Processing(LSP).The structure of the weld joint after LSP was analyzed,and its micro-hardness was measured with micro-hardness tester,the distribution of the surface residual stress of the weld joint was measured with X-Ray Diffraction(XRD) method.The micro strengthening mechanism of the weld joint of X70 steel pipeline by LSP was analyzed.Results show that a plastic-deforming layer is formed on the surface of weld joint by laser... |
| |
| Keywords: | laser shock processing X70 pipeline steel welded joint micro-hardness residual stress |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
